1895.] natural, sciences of philadelphia. 443 



October 29. 

 Dr. C. Newlin Peirce in the Chair. 



Ninety-one persons present. 



A paper entitled, " Synopsis of the North American Species of 

 Gorytes Latr," by Win. J. Fox, was presented for publication. 



The death of Louis A. Harlow, M. D., a member, was announced. 



The Publication Committee reported in favor of the publication of 

 the following papers in the Journal of the Academy: 



" Certain River-mounds of Duval County, Florida." By Clarence 

 B. Moore. 



"Two Mounds on Murphy Island, Florida." By Clarence B. 

 Moore. 



" Certain Sand Mounds of the Ocklawaha River, Florida." By 

 Clarence B. Moore. 



A preliminary account of the Re-exploration in 1894. and 1895 of 

 the "Bone Hole," now known, as Irwins' Cave, at Port Kennedy, Mont- 

 gomery County, Pennsylvania. Mr. Henry C. Mercer remarked 

 that when Dr. Samuel G. Dixon of the Academy kindly put him in 

 charge of the excavation at Port Kennedy in November of last year, 

 (after Mr. D. N. McCadden, having found fossils in a dump heap, 

 had called attention to the deposit, and after Mr. S. N. Rhoads had 

 excavated there for some time) he, the speaker, soon learned that they 

 were once more at the old so-called " Bone Hole" of Port Kennedy. 

 This was the place referred to by Mr. C. M. Wheatley, who gives a 

 cut of it in the American Journal of Science and Arts for April, 

 1871, and where he collected the bones described by Prof. Cope in the 

 Proceedings of the American Philosophical Society for April, 1871. 

 A recent lowering of the quarry floor had brought the workmen to 

 the same soft place that they had reached twenty-five years before. 

 They were twelve feet deeper than Mr. Wheatley had been at the 

 previous time, in a gallery filled up with stratified rubbish, whose 

 roof, if it had a roof, had been blasted away, whose bottom had 

 never been reached and whose horizontal extent no one can guess. 

 They were not standing in the darkness under a rock arch, but in 

 the open quarry, forty-five feet below the original surface of the hill, 

 at the very bottom of the quarried area, and below its water level, 

 so deep that the drainage hole close by had to be pumped out day and 

 night to keep the floor dry. A great mass of red talus, unfortunately 

 dumped exactly upon the deposit, overhung them ready to fall as 

 the digging went on. 



The explorer was confronted by a vertical bank about twenty-five 

 feet wide by twelve feet high and striped with colored bands of 



